John James Mansell Bowler (born 22 September 1949 in Kalgoorlie) is a former Australian politician who was a member of the Western Australian Legislative Assembly from 2001 to 2013. Bowler, then a member of the Labor Party, was elected to the legislature from the former seat of Eyre in 2001. He transferred to Murchison-Eyre in 2005, and was appointed as Minister for Local Government and Regional Development, Land Information, Goldfields-Esperance and Great Southern following the re-election of the Labor Government at that year's election and added the Sport and Recreation portfolio in November 2005.